Physics - Current Electricity Question with Solution | TestHub

Equivalent resistance, $R=10+\frac{10}{2}=15\mathrm{k}\Omega$ $\therefore$ Current, $I=\frac{V}{R}=\frac{30}{15\times 10^3}=2\times 10^{-3}\mathrm{A}$ Hence potential difference between A and B, $V=\left(\frac{2\times 10^{-3}}{2}\right)\times 10\times 10^3=10\mathrm{V}$